Can anyone tell, or recommend a brand of diff oil for my 2017 4X 3.5 rear? Ford wants $35 a quart!!!! for 75-85 syn!!! , Im not rich, HELP!

 

Have you ever been to Walmart or an auto parts store? If not, then look them up locally. Travel to them and price check the available offerings in said weight. Decide which one you like that you can afford and purchase. Then write down the name of said fluid in your owner's manual so you don't forget the next time you change it. Easy peasy.

 

Been there, done that, went to biggest and best WM and they dont carry any at all!

 

I think you'll find most owners who service their diffs themselves use a premium brand full synthetic 75w90 or 75w140 from Walmart or anywhere else. Friction modifier may or may not be required depending on your diff setup.

Not sure of your location. In Canada, the oil you'll need is priced at $20-$25 per litre. It's probably considerably less in the US.

 

Don't skimp...use quality lubricants. If you have a limited slip, use the friction modifier. If you have an electronic locking rear diff then do not use the modifier.

 

If Walmart and the auto parts stores don't have any, you may be SOL.

 

No 2017 Ford pickup truck has a limited slip -you will not need a friction modifier.

 

Check Amazon

 

Trust me, the$ i paid will not be in vain!

 

Looks like i'll be skipping a few lunches! It's worth it !!!!